Brake



Nov. 26, 1929.

F. O. CHRISTEL BRAKE Filed April 21, 1928 INVENTOR. fwd/21% 0. (X 2762?! Q5 ATTORNEY-5',

Patented Nov. 26, 1929 FRANK 0. CHRISTEL,

rainer rise or COLUMBUS, OHIO BRAKE Application filed. April 21,

The present invention relates, as indicated, to a brake,-,and more specifically to an automatically operatedbrake for application to a car of the general type disclosed in my co-pending application Serial No. 214,08, filed August 19, 1927, for a Running decoy. It'is the primary object of this invention to provide a brake of the character described which will be eificient in operation, certain of actuation, inexpensive to manufacture and install, relatively free from disorders, and simple to repair. r

To the accomplishment of the foregoing and related-ends,said invention, then, consists of'the means hereinafter fully described and particularly pointed out in the claims; the annexed drawings and the following description setting forth in detail certain mechanism embodying the invention, such d1sclosed means constituting, however, but one of various-mechanical forms in which the principle of the invention may be used.

In said annexed drawings:

Fig. l'is a plan view of a car of the type disclosed in my above identified co-pending application having applied thereto a brake of the character contemplated by the present invention; Fig. 2 is an end view of said car; Fig. .3 is a side elevation of a'fragment there- 'of; and Fig. 1 is a vertical section taken sub stantially upon the line f-4c of Fig. 1 and lookingin the direction of the arrows.

Referring more particularly to the drawiiigs, the reference numeral 1. indicates generally a'car of the character described running in a semi-enclosing track 2 and 0011113118 ing a frame 3 provided with a pa r of wheels 1 driven by'a motor 5, a second pair of wheels 6 driven by a second motor 7, and a plurality of wheels 8 mounted on vertical axles and bearing against the side walls of the track 2 to guide said car. L

According to the present invention PlVOL-S 9 are mounted in upstanding ears 10 upon a member extending transversely of said car and secured to the lowermost frame members 11@ Each of said pivots 9-carries a brake lever12'in alignment with one of said wheels 4. E'aclrof said levers'12 carries a shoe 13 adjacent to,and in the plane of, one of said 1928. Serial No. 271,737.

wheels 4, each of said shoes 13 being provided with a wear plate or friction plate i lon its face adjacent said wheel. The upper ends-of the levers 12 are connected by a member 15 secured thereto, and extending transversely of said levers; A coil spring 16 has one end 17 secured to one cf said levers 12.and its opposite end 18 secured to an eyebolt 19 upon the upper frame member 20. A similar spring 16 is secured to the so other lever 12 and to a similar eyebolt 19 upon the other upper frame member 20,. As a modification of the above described spring connection, each of said springs may have end secured to said member 15 adjacent'the e5 ends thereof,.as illustrated in Fig; v1.

Journaled in ears 21 projecting upwardly from said-upper members 20 is a rock shaft 22 having secured thereto a pair of latch arms23. Each ofsaid armsis notched ad jacent its outer end, as at 24:, said notches being adapted to receive the member 15. At one end, therock shaft 22 extends beyond the frame of said car, as. zit/25, and is bent upwardly as at 26 to form a trip arm. A coiled spring 27 has one end secured to said trip arm 26 and has its opposite end secured to anysuitable point-on the frame, such as one of the eyebolts 19. f i

Upon one side flange 28 of the track 2 there so is .mounted a. bifurcated brace 29, and pivoted, as at 30, to the adjacent wall is a latch trip lever 31. An eyebolt 32 is carried by said lever 31 adjacent its fre'e'end, and a, cord 33 maybe secured to said eyebolt and threaded through a pulley. 34 and ledto any convenient point for operation. It is to be understood that the pivot point 30 for the lever 31 is so located that the lever 31 will fall between the furcations of' the brace 29 when said lever is allowed to swing downwardly.

.When the car 1 is about to be started upon a circuit of the track 2, the member 15 is pulled rearwardly against the force of'the springs 16 until it overrides thepoint 35 on the latch arms 23. lhe spring 27; operating upon the trip arm '26 will throwthe latch arms 23 upwardly to allow the member 15 to enter the notches 2 1. .Theoperator may then release the member 15 and the latch illustrated. in Fig. 4 in which the brake shoes 13 are held out of contact with the wheels 4. The cord 33 is drawn in to raise the trip lever 31, and the motors 5 and 7 are then energized to drive the car about the track. If the car is to make only one circuit of thetrack the arm 31 may be dropped as soon as the car has started. If, however, the car is to make more than one circuit the lever 31 must be held in its raised position until the car has passed the same on its last lap. Thereafter the cord 33 may be released to permit the lever 31 to drop into the position illustrated in 2. As the car reaches the finish line, the lever 31is interposed in the path of the trip arm 26. The car is moving, at this time, toward the right, as seen in Figs. 1, 3 and 4, and it will be seen that when the trip arm 26 strikes the trip lever 31 said arm will be forced to the left, thus rotating the rock shaft 22 in a counterclockwise direction and releasing the engagement between the latch arms 23 and the member15. Immediately, the springs 16 move the arms 12 toward the right, as viewed in Fig. 4, for instance, and

pull the brake shoes 13 firmly into contact with the wheels 4 to stop the car.

Other modes of applying the principle of my invention maybe employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and dis- I tinctly claim as my invention 1. The combination with a self-propelled car adapted to run in a track and provided with a pair of wheels, of a brake comprising a lever pivotally'mounted at its lower end on the frame of said car and carrying a brake shoe adjacent one of said wheels, means 'urgingsaid shoe toward contact-with said wheel, and latch means cooperative with said lever to hold said shoe out of contact with said wheel. 1

2. The combination with aself-propelled car adapted to run in a track and provided with a pair'of wheels, of a brake comprising a lever pivotally mounted at its lower end on the frame of-said car and carrying a brake shoe adjacent'one of said wheels, means urging said shoe toward contact with said wheel, a member secured to said lever and extending transversely thereof, and means engageable with said member to counteract the tendency of saidfirst means.

i 3. The combination with a self-propelled car adapted to run in a track and provided with. a pair of wheels, of a brake comprising a. lever pivotally mounted at its lower end on the frame of said car and carrying a brake shoe adjacent one of said wheels, means urging said shoe toward contact with said wheel, a member secured to said lever and extending transversely thereof, and a latch arm engageable with said member to counteract the tendency of said first means.

l. The combination with a self-propelled ear adapted to run in a track and provided with a pair of wheels, of a brake comprising a lever pivotally mounted at its lower end on the frame of said car and carrying a brake shoe adjacent one of saidwheels, a coiled spring secured at one end to said frame and at its opposite end to said lever at a point adjacent the upper end of the latter, said spring tending to move said shoe into contact with said wheel, a member secured to said lever adjacent the upper end of the latter and extending transversely thereof, and a latch arm engageable with said member to prevent movement of said shoe by said spring.

5. The combination with a self-propelled;

car adapted to run in a track and provided with a pair of wheels, of a brake comprising a lever pivotally mounted at its lower end on the frame of said car and carrying a brake shoe adjacent one of said wheels, a coiled spring secured at one end to said frame and at its opposite end to said lever at a point adjacent the upper end of the latter, said spring tending to move said shoe into contact with said wheel, a member secured to said lever adjacent the upper end of the latter and extending transversely thereof, a rock shaft carried by said frame adjacent said member and parallel thereto, a latch arm secured to said shaft and engageable with'said member to prevent sprin secured at one end tofsaid frame and at its opposite endto said lever at a point adjacent the upper end of the latter, said spring tending to move said shoe into contact with said wheel, a member securedto said lever adjacent the upper end of the latter and.

arm

extending transversely thereof, a rock shaft carried by said frame adjacentsaid member and parallel thereto, a latch arm secured to said shaft and engageablewith said member to prevent movement of said shoe by said spring, a trip arm secured to said rock shaft, and a spring cooperating with said trip arm and tending to hold said latch arm in engagement with said member.

7. The combination with a self-propelled car adapted to run in a track and provided 7 with a pair of wheels, of a brake comprising a pair of pivots secured to the lowermost members of the frame of said car, a pair of spaced, parallel levers mounted on said pivots in longitudinal alignment with said wheels, respectively, and projecting upwardly from said pivots, a shoe secured to each of said levers adjacent the respective wheels, a coiled spring having one end secured to each of said levers adacent the upper end thereof, each of said springs being secured at its opposite end to said frame, said springs tending to move said shoes into contact with said respective wheels, a transverse member connecting the upper ends of said levers, a rock shaft journaled in ears on the uppermost members of said frame, a latch member having its free end notched secured to said rock shaft said notch being adapted to receive said transverse member to hold said shoes out of contact with said respective wheels, said rock shaft extending beyond said car frame, a trip arm on the extending end of said rock shaft, and a coiled spring secured to said trip arm and to said frame to hold said latch arm resiliently in engagement with said transverse member. 8. The combination with a self-propelled car adapted to run in a track and provided with a pair of wheels, of a brake comprising a movable member, a shoe on said member resiliently urged to contact with one of'said wheels, latch means cooperative with said member to hold said shoe out of contact with said wheel, and a trip lever mounted on said track and movable into and out of the path of said latch means. 7 9. The combination with a self-propelled car adapted to run in a track and provided with a pair of wheels, of a brake comprising a lever pivotally mounted at its lower end on the frame of said car and carrying a brake shoe adjacent one of said wheels, a coiled spring secured at one end to said frame and at its opposite end to said lever at a point adjacent the upper end of the latter, said spring tending to move saidshoe into contact with said wheel, a member secured to said lever adjacent the upper end of the latter and extending transversely thereof, a rock shaft carried by said frame adjacent said member and parallel thereto, a latch arm secured to said shaft and engageable with said member to prevent movement of said shoe by said spring, a trip arm secured to said rock shaft, a spring cooperating with said trip arm and tending to hold said latch arm resiliently in engagement with said 5.5 member, and a trip lever mounted on said track and movable into the path of said trip arm.

Signed by me, this 19th day of April, 1928.

FRANK O. CHRISTEL. 

